<?php
class Config
{
	private $data = array();

	public function get($key)
	{
		return (isset($this->data[$key]) ? $this->data[$key] : null);
	}

	public function set($key, $value)
	{
		$this->data[$key] = $value;
	}

	public function has($key)
	{
		return isset($this->data[$key]);
	}

	public function load($filename)
	{
		$file = DIR_ROOT . "/system/config/{$filename}.php";
		if (file_exists($file))
		{
			$_ = array();
			require($file);
			$this->data = array_merge($this->data, $_);
		}
		else
		{
			trigger_error('Error: Could not load config ' . $filename . '!');
			exit();
		}
	}
}

?>